/* ===== ENHANCED COLOR SCHEME ===== */
:root {
  --primary: #0A2463;
  --primary-light: #1a357c;
  --secondary: #495867;
  --secondary-light: #5a6b7a;
  --accent: #FF6B6B;
  --accent-dark: #e55a5a;
  --background: #F8F9FA;
  --card-bg: #FFFFFF;
  --text: #2D2D2D;
  --text-light: #6c757d;
  --border: #e2e8f0;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-hover: 0 10px 20px rgba(0, 0, 0, 0.12);
  --transition: all 0.3s ease;
}

/* ===== BASE STYLES ===== */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  color: var(--text);
  background-color: var(--background);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

.content-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px;
}

h1, h2, h3, h4 {
  font-weight: 600;
  line-height: 1.3;
}

h2 {
  font-size: 1.8rem;
  margin-bottom: 40px; 
  font-weight: 600;
  line-height: 1.3;
}

#about h2,
#projects h2 {
  text-align: center;
  color: var(--primary);
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

#about h2:after,
#projects h2:after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 10px auto 0;
  border-radius: 3px;
}

h3 {
  font-size: 1.3rem;
  margin-top: 0;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--accent);
  transition: var(--transition);
}

a:hover {
  color: var(--accent-dark);
}

/* ===== HEADER & NAVIGATION ===== */
header {
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-content {
  max-width: 900px;
  margin: 0 auto;
  padding: 15px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
}

.name-title {
  text-align: left;
}

.name-title h1 {
  color: var(--primary);
  margin: 0 0 5px 0;
  font-size: 1.8rem;
  font-weight: 700;
}

.name-title h2 {
  color: var(--secondary);
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
}

.nav-menu {
  list-style-type: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 5px;
}

.nav-menu li a {
  display: block;
  color: var(--text);
  padding: 10px 15px;
  text-decoration: none;
  font-weight: 500;
  border-radius: 6px;
  transition: var(--transition);
}

.nav-menu li a:hover,
.nav-menu li a.active {
  background-color: var(--primary);
  color: white;
}

/* ===== HERO SECTION ===== */
#hero {
  text-align: center;
  margin: 40px 0;
  padding: 20px;
}

.profile-photo {
  width: 190px;   
  height: 190px;  
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 25px;
  border: 5px solid var(--card-bg); 
  box-shadow: var(--shadow);
}

.tagline {
  font-size: 1.3rem;
  color: var(--secondary);
  font-style: italic;
  max-width: 30ch;
  margin: 0 auto;
  font-weight: 500;
  line-height: 1.5;
}

/* ===== SKILLS SECTION ===== */
#skills-overview {
  margin: 60px 0;
}

#skills-overview h2 {
  text-align: center;
  color: var(--primary);
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

#skills-overview h2:after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 10px auto 0;
  border-radius: 3px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr); 
  gap: 2rem; 
  width: 100%;
}

.skill-card {
  background: var(--card-bg);
  padding: 30px 25px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-top: 4px solid var(--accent);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.skill-card h3 {
  color: var(--primary);
  margin-bottom: 20px;
  font-size: 1.3em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.skill-list {
  list-style-type: none;
  padding: 0;
  margin: 0;
  flex-grow: 1;
}

.skill-list li {
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  color: var(--secondary);
  display: flex;
  align-items: center; 
  gap: 10px;
}

.skill-list li:last-child {
  border-bottom: none;
}

.skill-icon {
  color: var(--accent);
  font-weight: bold;
  min-width: 24px;
  font-size: 1.1rem;
  text-align: center;
}

/* ===== PROJECTS SECTION ===== */
#featured-projects {
  margin: 60px 0;
}

#featured-projects h2 {
  text-align: center;
  color: var(--primary);
  margin-bottom: 40px;
  position: relative;
  display: inline-block;
  left: 50%;
  transform: translateX(-50%);
}

#featured-projects h2:after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 10px auto 0;
  border-radius: 3px;
}

.project-preview {
  background: var(--card-bg);
  padding: 25px;
  margin: 30px 0;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--accent);
}

.project-preview:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.skills-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 1rem 0 1.5rem 0;
    padding: 0;
    list-style: none;
}

.skill-badge {
    background-color: var(--background); 
    color: var(--text); 
    padding: 0.5rem 1.1rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-block;
    border: 1px solid var(--border); 
    transition: var(--transition); 
    box-shadow: var(--shadow);
}

.skill-badge:hover {
    background-color: var(--primary); 
    color: white; 
    box-shadow: var(--shadow-hover); 
    transform: translateY(-2px); 
}

/* ===== CONNECT SECTION ===== */
#connect {
  text-align: center;
  margin: 80px 0;
  padding: 50px 30px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
  border-radius: 16px;
  color: white;
}

#connect h2 {
  color: white;
  margin-bottom: 15px;
}

#connect p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 500px;
  margin: 0 auto 30px;
  font-size: 1.1rem;
}

.connect-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

/* ===== BUTTONS ===== */
.cta-button {
  display: inline-block;
  padding: 14px 28px;
  background-color: var(--accent);
  color: white;
  text-decoration: none;
  border-radius: 8px;
  font-weight: 600;
  transition: var(--transition);
  border: 2px solid transparent;
  box-shadow: var(--shadow);
}

.cta-button:hover {
  background-color: var(--accent-dark);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

#connect .cta-button {
  background-color: white;
  color: var(--primary);
  border: 2px solid white;
}

#connect .cta-button:hover {
  background-color: transparent;
  color: white;
}

/* ===== PROJECT DETAILS ===== */
.project {
  background: var(--card-bg);
  padding: 25px;
  margin: 40px 0;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border-left: 4px solid var(--accent);
}

.project:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.project-links {
  display: flex;
  gap: 15px;
  margin: 20px 0;
  flex-wrap: wrap;
}

.project-links a {
  padding: 10px 20px;
  background-color: var(--accent);
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
}

.project-links a:hover {
  background-color: var(--accent-dark);
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  margin-top: 80px;
  color: var(--text-light);
  padding: 30px 20px;
  border-top: 1px solid var(--border);
}

/* ===== BADGES ===== */
.project-badge {
  display: inline-block;
  padding: 5px 12px;
  background-color: var(--secondary);
  color: white;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin: 5px 0 15px 0;
}

.group-badge {
  background-color: var(--secondary);
}

.individual-badge {
  background-color: var(--accent);
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    text-align: center;
    gap: 15px;
  }
  
  .name-title {
    text-align: center;
  }
  
  .nav-menu {
    justify-content: center;
    flex-wrap: wrap;
  }
  
  iframe {
    height: 600px;
  }
  
  .skills-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .connect-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .cta-button {
    width: 100%;
    max-width: 250px;
    text-align: center;
  }
  
  .project-links {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .name-title h1 {
    font-size: 1.5rem;
  }
  
  .name-title h2 {
    font-size: 0.9rem;
  }
  
  .tagline {
    font-size: 1.1rem;
  }
  
  .skill-card, .project-preview, .project {
    padding: 20px;
  }
  
  #connect {
    padding: 30px 20px;
  }
}

/* ===== UTILITY CLASSES ===== */
.text-center {
  text-align: center;
}

.mb-0 {
  margin-bottom: 0;
}

.mt-0 {
  margin-top: 0;
}

/* ===== BACK TO TOP BUTTON ===== */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: var(--accent);
  color: white;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: bold;
  box-shadow: var(--shadow-hover);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  z-index: 999;
  /* Add these two lines to fix the arrow alignment: */
  padding: 0;
  line-height: 1;
}

.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--accent-dark);
  transform: translateY(-3px) scale(1.05);
}